Combined cooling and ventilating apparatus.



C. H. CGOLIDGE.

NTILATING APPARATUS.

COMBNED COOLING AND VE ARPLIGATIDN FILED PEB. i9. 1908 Patented Maz. 4:, 1918.

3 SHEETS-SHBBT l.

C. H. COOLIDGE. COMBINED COOLING AND VENTILATING APPARATUS.

APPLICATION FILED FEB. 19, 13:02v

Patented Mar. 4, 1913.

3 SEEETS-SHEET 2` THG APPARATUS.

COMBINED APPLICATION FILE/D FIB. 19.

Patel. Mar. 4, 1913.

3 SHEETS-SHEET a'.

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CHARLES H. COOLIDG, OF MALDEN, MASSACHUSETTS, ASSIGNOR TO BOSTON REFRGERATING COMPANY, A CORPORATION OF MAINE.

COMBINED COOLING ANO VENTILATING APPARATUS.

instaan.

Specification of Letters atent.

Patented nar. a, iai a.

appncann sied remuant' ia, isos. serial No, 416,663.

To IH u-/iom z'z may concern Be it known that l. Cit-Lunies H. CooLmon. a citizen of the tlnited States, residing at Malden. in the county of Middlesex and State of Massachusci'ts`r have invented new and useful improvements in a Combined Cooling and TVentilating Apparat-us, of which the following is a specitication.

My invention relates to improvements in refrigerators and while some of its features are applicable to refrigerators in general. the particular embodiment of my invention is essentially adapted to a refrigerator made in the form of a refrigerator car.

W' hen refrigerator cars are in transit. it is often desired to ventilate them. In refrigerator cars now in use, this is accomplished hy opening the trap doors in the roof of the car forming the inlets to the respective ice chambers at either end thereof, whereby the air may pass through the top of the oar over the goods in the cooling chamber. This inode of ventilation is not only very ineffective inasmuch as the air will simply passl over' the goods and have no circulation through the same` but such inode of ,ventilation results in cinders and smoke being carried into the cooling chamber and thereby injuring the goods.

The essential object of my invention acoordingly is to effect. such an arrangement in the refrigerator as to form also a coin` hined. Ventilating apparatus whereby air entering the car for purposes of ventilation ma be directed to circulate through the body of the car forming the cooling chamber and through the goods stored therein and at the same time to eliminate the possibility of any cinders or other impurities being carried into the cooling chamber; my object in a word being to provide in the re'- frigerating apparatus means for properly Ventilating the cooling chamber of the Car and without possibility of injury to the goods. i

Another object of my invention is to provide means whereby When the trap doors are opened the shutter is automatically closed and vice versa so that the shutter cannot he left open through carelessness when the car lahaine" ventilated and' on the other 4 in 1 i. hand when the shutter should, be can vention.

not. through inadvertance be loft ein pointed out in the appended claims.

t Referring to the drawings: Figure 1 is a. vertical longitudinal sectional vi of one end of a refrigerator carI embo v)if/ng my in- Fig. 2 is an enlarged detail sectional view of the hinge of one of the shutters. Fig. 3 is a sectional viewitaken on line $3- of Fig. l, looking toward the right. Fig. Je is a vertical` longitudinal, sectional elevation of the end of the refrigerator car opposite to the end which is shown in Fig. 1.

Like numerals refer to like parts throughout the several views of the drawings.

ln the drawings, 5 is a car body to which my invention is applied. The car body 5 at each end is preferably provided on all 4sid-es thereof with triple walls. there being suitable insulating material between the outer pair of walls and an air space .between the inner pair. lithin the car body 5 is an ice chamber (l and a cooling chamber 7 which are separated by a vertical Wall 8, there being a passage S) extending across the top of said wall and connecting said cham bers. ln the ice chamber 6 and at the bottom thereof is anice support l() comprising a plurality of horizontal slats or bars 1l supported at their opposite ends on supports 12. On three of t-he sides of the ice chamber 6 are slats or bars 13 secured to the Walls of said chamber aty suitable distances apart so as to prevent ice from coming in Contact with said'walls, While on the fourth side of said chamber is a screen 14 separated from the adjacenty wall an air space so thatwheu the ice chamber is filled with ice there are vertical passages on all sides thereof which permit a free circulation of the air from the passage 9 downwardly through said chamber.

Located. below the ice support 10 is a shelf 1C mounted on a suitable support 16 and sloping downwardly toward themiddle of the chamber, said shelf being referably covered with a piece of sheet metall) 17. The

1 shelf 15 is separated from the outer wall of AJus two vrods 38 are vso spectively.

-arc of 180 the car body by an air passage 18 through which the cold air may descend. At the lower edge of the shelf' 15 I provide a trough or gutter 19 which is adapted to receive the water which Hows down the surface of said shelf and the water flowing to the ends of said gutter falls onto a second shelf 20 which extends from the wall 8 downwardly toward the middle of the chamber in which it is located, said shelf' being also preferably provided with a covering 21 of sheet metal. At the lower edge of the shelf 20 is-a vertical wall 22 which compels the water totlow into two drain pipes 23 located at opposite ends, respectively, ofthe shelf 20. A-screen 24 suspended from the shelf 15 by means of hooks 25 meets the shelf 20 above the inlet orifices of the pipes 23 and thus any sawdust or the like which may come from the ice' onto the shelf 20 is held away from said inlet orices and, therefore, is prevented from clogging said pipes.

Below the wall 8 is located an air passage 26, while a screen 27 extends entirely across said passage. Located beneath the lower ends of the pipes 23 are traps 28 which may be of any usual or desired construction and as herein shown are pivoted at 29. Two openings 30, 30"extend through the roof 31 of the car body, these openings being pro vided for the admission of the ice into the ice chamber 6. Over the openings 30 are arranged trap doors 32 hinged at 33, said doors being adapted to swing through an arc of 180. Located in the openings 30 below the trap respectively, which consist of tapered plugs made up of three walls suitably packed with insulating material and having an air space similar tothe walls of the car body 5. In order' to close-,the spaces or passages 9, I provide three shutters 35 fast to a shaft 36 extending Vtransversely ofthe car to the shutter 35 are two arms 37 to which pivotally connected, respectively, said rods extending through holes 39 transversely of and beyond the plugs 34, respectively. 0n the upper ends of the rods 38 are journaled rolls 40 adapted to engage plates 41 'fast to the trap doors 32. respectively. -When the trap doors 32 are lifted from ythe position shown in full lines, Fig. 1,- tothe position shown in dotted lines therein, the shutters their axis into the position shown in dotted lines, Fig. 1. the rolls 40 during this 'time remaining in contact with the plates 41, re- The shutters being now closed, continued opening movement of the trap doors doors 32 are closures 34. 34,

body 5 and mounted to rock in suitable bearings. Fast I 35 by gravity rock on.

32 through the remainder of an separates the plates 41 from the f anaemia that the vshutters 35 remain closed during trap doors.

It will be understood that if only one of the trap doors 32 is opened theshutters 35 will remain open until the has been opened.- The 'plugs 34 arethen Y. withdrawn upwardly from laid upon the roof 31. The ice chamber can now be filled with iceand when this is done the trap doors 32 are closed. As the trap doors 32'close the plateslll strike the rolls 40, respectively, and impart a downward movementto the rods 38 which results in the shutters 35 being rocked on their pivots vinto the position shown in full lines, Fig. 1. The car having now been iced, a circulation of air commences within the same, the air rising to the roof thereof and passing through the spaces 9 into the ice chamber 6. The cooling of the air in the ice chamber causes it -to fall downwardly through the passages on all sides of the ice, through the air passage 18 and throughthe spaces between the bars 11 into shelf 20 and thence through into the cooling chamber 7.

There are many times when .it is unnecessary to use ice in refrigerator cars, and at l such times it often becomes desirable to Ventilate the cars, especially when passing through cold tunnels. To do this the trap doors 32 are raised to the position shown in dotted lines, Fig. 1. the plu'gs 34 are withdrawn and as hereinbefore stated when the passage 26 ters close by gravit-y. Therefore, as the ear is passing through a tunnel the air from the tunnel passes downwardly through the openings 30 and instead of .bein allowed to pass through the passages 9 which are now closed Aby the shutters 35, said air passte downwardly within the ice chamber 6 into the chamber therebelow, thence through the opening 25 through the entire length ofthe therefrom through similjlar openings and passages in a duplicate I' refrigerator apparatus. located in t-he opl posits end ofthe ca r. f it were not for the openings 9 being closed by the shutters 35 during the venti i car and] outwardly would pass from said' opening into the Icoolvegetables or other goods stored therein. By forcing the air to pass downwardly through the ice chamber no cinders nor smoke find their way into the cooling chamber since the cinders find lodgment in the ice chamber. ITo prevent ice from |ifrom the ice chamber 6 into the cooling chamber 7 and also to prevent train hands and other persons from reaching their arms i i i i i i i i this latter part of the movement of said,

second trap door' their places andV the plug-S34 are returned to their places and the space below the' 'the trap doors 32 are thus raised the shut-l lating just' described, smoke and cinders accidentally passing 1 rolls 40, respectively, and it will be evident a asv 12ov ing chamber 7 and would injure the fruit, g

noname into Said cooling chamber and stealing fruit,

I provide screens 42 extending across the passages 9.

Having thus described my invention, what Il claim and desire by Letters Patent to secureis:` i

l. In a combined Ventilating apparatus, a housing having a feeder passage and provided with upper and lower air passages communicating with the feeder 'passage land the interior of the housing, one wall of the housing being provided with an opening leading to the outer atmosphere, a door pivoted toswing about a substantially horizontal axis and adapted to close said opening, a shutter pivoted to swing about a substantially horizontal axis and adapted to close' said upper passage, and means interposed between said shutter and said door whereby during a portion of the opening movement of said door said shutter is adaptved to completely close, and whereby during the remainder ot the opening movement ot said door the shut-ter remains closed, said asY lower passage being open at all times.

2. In a combined Ventilating apparatus, a chamber provided with upper and lower air passages and an intermediate Jfeeder passage communicating with said tirst passages, said upper and lower passages also communicating with the interior of the chamber, one Wall of said chamber being provided with an opening leading to the atmosphere,

'a door hinged to close said opening, a shutter pivoted to close said upper passage, and means interposed between said door and said shutter wherebyduring the initial portion of the opening movement of the door said shutter is adapted to completely close, said shut-ter being adapted to remain closed during the remaining portion of the opening movementof'the door, said lower passage being open at all times.

3. In a combined Ventilating apparatus, a chamber provided `with upper and lower air passages and a feeder passage intermediate said first passages, said upper and lower passages communicating with the feeder pessage and the interior of said chamber, one wall of the chamber having an opening leading to the outer atmosphere, a door adapted .to close said opening, a shutter adapted to close the upper one of said passages, and means interposed between said shutter andk said door whereby during the initial portion ot the opening movement of said door said, shutter is adapted to completely close, and; whereby during the remainder ot said opening movement of said door 'said shutter rea at all times.

4. In a combined Ventilating apparatus, a chamber provided with an intermediate eeder passage and upper and lower air' passages communicating with the tender mains closed, said lower passage being open passage and with the interior of the chamber, one wall of said chamber having an opening therethrough leading to the outer atmosphere,`a door adapted to close said opening and arranged to be normally held closed by gravity, a shutter adapted to close said upper passage and arranged to be closed by gravity, and means interposed between said shutter and said door whereby during the initial portion of the opening movement of saifd doorsaid shutter is adapted to completely close, said shutter being adapted to remain closed during the remaining portion ot the opening movement of the door, said lower passage being open at all times.

5. In a combined Ventilating apparatus, a chamber having a feeder passage and upper and lower passages communidtting therewith and with the interior of the chamber, one wall of the chamber having an opening leading to the atmosphere, a door adapted to close said opening, a pivoted shutter adapted toclose said upper passage, and a rod arranged between the door and the shutter and adapted to be actuated by said door but disconnected thereirom, whereby said door during the. final portion of its closing movement is adapted tocompletely open said shutter, said shutter be ing` adapted to remain closed during the initial. portion of the closing movement o' the door, said lower passage being open at all times.

6. In a combined Ventilating apparatus, a chamber provided with a main passage and upper and lower passages cominnnieat ing with the main passage and with the interior of the chamber, said chamber also having in one wall an opening, a closure for said opening, a door also adapted to close said opening, a shutter adaptedto close said upper passage, and means interposed between said shutter and said door and extending transversely o and past` said closure whereby during the'final portion oi the closing movement of said door said shutter is adapted to completely open, said shutter remaining closed during the initial portibn of the closing movement of the door, .said lower passage being open at all times.

7. In a combined Ventilating apparatus,

'a chamber -,provided with a main sassage and a feeder passage` a main chamber having 'an air passage and an opening, said ail'v passage communicating with the main chamber, a`door adapted .to close said opening, a pivoted shutter normally closing said passage, an arm carried by the shut-ter and a rod interposed between said arm and sai'd door whereby during the final portion of the closing movement of said door said shut-ter is completely opened.

9. A combined Ventilating apparatus having a chamber provided with a feeder passage and an air passage opening into said feeder passage and into said chamber, one wall of the chamberhaving an opening. a pivotedV door adapted to close said opening, a normally closed shutter for said passage. a rod connected -to said shutter, and a roller journaled on said rod and adapted to engage said door whereby said door during the final portion of its closing movement is adapted to completely open said shutter.

10. In a combined Ventilating apparatus, a chamber provided with two main passages therethrough and air passages communicating with the main passages and with the chambeiyone wall of said chamber being provided with two openings, a pair of doors adapted to close said openings, shutters adapted to close said aix-passages, and means interposed between said doors and said sluitters whereby during the final closing inove ment of either of said ldoors the corresponding shutter is adapted to completely open. and whereby during the remainder of said closing movement said shutters remain stationary.

llrln a combined Ventilating apparatus, a housing provided with a wall dividing the housing into an inner chamber and a main passage, said Wall having an upper passage and a lower passage connecting the inner chamber with said main passage, said housing having a roof provided with an opening leading from the outside thereof into the main passage, a shutter adapted to close said upperv passage, a door adapted to close said opening in the roof, andmeans interposed between said shutter and 'said door whereby during the initial portion of the opening movement of said door said shutter is adapted to completelyr close, said shutter being adapted to remain at rest during the remaining portion of the opening movement of said door, said lower passage'being open at all times.

12. A combined lVentilating comprising a housing having a wall dividing the housingr into an inner-compartment .said wall being provided with an upper passage 'anda lower passa e connecting the inner chamber with said ceder passage. said housing having a roof provided with an opening leading from the outside thereof into the feeder pasapparatus sage, a shutter pivoted at its-upper edge and adapted to close said upper passage a door adapted to close said opening in t e roof, and means interposed 'between' said shutter ind said door'whereby during the initial portion of the opening movementof said the opening movement' z housing provided with ra wall dividing the y housing into an inner chamber and a inaipassage, said wall' having an upper passage and a lower passage connecting the inner chamber with .said main passage,'said hoiising having a roof provided with an opening leading from the outside thereof into said main passage, a door for said opening, a noriifally closed. shutter for said upper passage, an arni fast to said shutter, and a rod pivotally connected to said armand adapted for engagement with said dooivwhereby said door closing movement is adapted to open Said shutter. said lower passage being open at all times. d

'14. A combined Ventilating' apparatus comprising ahousing having an' inner coinpartrnent and end inain passages,.said hous-A ing having upper and lower passages'at the ends of the inner compartment communicating the inner compartment 'with said main passages whereby air may be circulated throughsai-d passages and through the inner' compartment, said housing further having inlets at its ends communicating with ythe main passages, and means for controlling the upper. passage "at one end of the housing whereby air entering said mainy passage through the adjacent' inlet thereto may be directed to pass through said passageinto vits 'lowerend passage and through said inner compartment and the opposite .lowerv passage, and thence through ends of the housing. doors adapted to close said openings, said partitions having upper and lower passages communicatingr the interior of the housing with the spaces-at the ends thereof, shut-- ters for thc upper passages in the partitions,

and operating means conni` ctedI between said shutters and said doors whereby during the initial portion of the opening movement of during the final portion of itsy the spaces betweenv said' lio to becomeither of the doors the corresponding shutter is adapted. to completely close and remain closed during the remaining portion of the opening' movement of 'the door, and whereby upon the finiti portion of the ciosingmovement of either of said doors the Corresponding shutter is completely opened, the shutters renmining at rest during the linitial portion of the closing movement of the corresponding door, the lower passages lo in said partitions being open at all times.

In testimony whereof l have hereunto set my hand in presence of two subscribing Witnesses.

CHARLES H. COOLDGE.

1iiitnesses: l y

'LOUIS C.-Jo1-:E`s, ANNIE J. DLEX. 

